56 TWENTY-SIXTH REPORT ON THE STATE MUSEUM. 
usually paler at the top, velvety with a short close plush; spores 
subglobose, about .0002 in. in diameter. 
Plant 2'-3' high, pileus 1-2’ broad, stem 1’-2" thick. 
Old logs in woods. Pine Hill and Worcester. 
The granules form a sort of plush which is more dense on the 
disk of the pileus and its wrinkles than on the margin. The spe- 
cies is related to Ag. nanus, but is larger and has a different stem. 
AGARICUS ByssIsEDUS Pers. 
Rotten wood. Sterling, Cayuga county. August. 
Agaricus (Lepronia) Fotiomarernatus Peck. 
Pileus convex, umbilicate, scabrous on the disk, bluish-brown, 
the disk a little darker; lamelle broad, subdistant, plane, whitish, 
then flesh-colored, the edge entire and colored like the pileus; 
stem smooth, equal, solid below, with a small cavity above, con- 
colorous. 
Plant 1'-2' high, pileus 6’-10" broad, stem .5" thick. 
Ground a decaying wood in groves. Maryland, Otsego 
county. July 
It is alate! to Ag. serrulatus. 
Acanricus (NoLaneA) Fuscorottus Peck. 
Pileus thin, conical or campanulate, papillate, smooth, hygro- 
phanous, dark-brown and striatulate when moist, grayish-brown 
and shining when dry ; lamelle ascending, rather close, narrowed 
toward each end, brown; stem equal, stuffed, smooth, concolorous, 
with a white mycelium at the base: spores irregular, nucleate, 
.00033 x .00025 in. 
Plant 1’ high, pileus 3’—6" broad, stem .5" thick. 
In woods on old logs. Maryland. July. 
Agaricus (Crepipotus) HerRBarum 7. sp. 
Pileus thin, at first resupinate, with the margin incurved, clothed 
with white down, at length somewhat reflexed, less downy, the 
thin margin spreading ; lamelle narrow, not crowded, diverging 
from a naked lateral or eccentric point, white, then tawny; spores 
slightly curved, .00028 x .00014 in. 
Pileus 2’-4" broad. 
Dead stems of herbs. North Greenbush. October. 
The pileus is attached by white, webby filaments. 
